*{
	padding: 0px;
	margin: 0px;
}
li{
	list-style: none;
}
.float_left{
	float: left;
}
.float_right{
	float: right;
}
.clear_float{
	zoom:1;
}
.clear_float:after{
	content: "";
	display: none;
	clear: both;
}